HenrydePercy, 2nd Lord Percy was born on 6 February 1300/1 at Leconfield, Yorkshire, England.2 He was the son of HenrydePercy, 1st Lord Percy and LadyEleanorFitzalan.3 He married IdoinedeClifford, daughter of RobertdeClifford, 1st Lord Clifford and MauddeClare, in 1314 in a Yorkshire, England marriage.2 He died on 26 February 1351/52 at age 51 at Warkworth, Northumberland, England.2 He was buried at Alnwick Priory, Northumberland, England.2 He succeeded to the title of 2nd Lord Percy [E., 1299] in 1314.1 In 1318 he was granted custody of Alnwick Castle.4 He was custodian of Scarborough Castle between 1321 and 1324.4 He was invested as a Knight in 1322.4 He was Keeper of the coast of Yorkshire in 1324.4 He was Keeper of the coast of Northumberland in 1325.4 He held the office of Keeper of Skipton Castle.4 In 1326 he sided with Queen Isabella against her husband King Edward II's last favourites, the Despensers.4 He was chief commissioner to monitor observance of the truce with the Scots in February 1326/27.4 He held the office of Warden of the Scottish Marches in February 1326/27.4 He held the office of Ambassador to Scotland in April 1327, and chief plenipotentiary in peace negotiations with the Scots. He was one of only four nobles not to be deprived of their Scottish possessions.4 In 1328 he was granted Warwick Caslte by King Edward III.4 He held the office of Keeper of Bamburgh Castle in April 1330.4 He was envoy to negotiate peace with the French in January 1330/31.4 He held the office of Justiciar of Eastern March in February 1330/31.4 He held the office of Warden of the March in 1332.4 He fought in the Siege of Berwick.4 He gained the rank of Battle of Halidon Hill in July 1333.4 He was chief commissioner to Scots Parliament to ensure Edward Balliol honoured his pledge to do homage to King Edward III and cede southeast Scotland in October 1333.4 He fought in the Battle of Neville's Cross in 1346, in command of the third division.4 He was commissioner to negotiate the final peace with the Scots in 1350.4